The Cabinet of Dr. Cagliari (1920) Robert Wiene

Horror films have been a mainstay in the film industry and many say this film could be the influence that hs helped the popularity of horror movies. German expressionism is shown in this film and has impacted on other movies with its peculiar style. "German expressionism in film was an artistic movement advancing the theory that every component of a movie - the photography, scenery, lighting, costuming and acting - should be intentionally stylized and even wildly exaggerated in order to achieve a unified emotional impact". The use of dark mysterious lighting along with the horror style scenery makes this film one of the first movies to create a real horror theme.